absorptivity
Material's intake measure
Absorptivity is the capacity of a material to absorb radiation, particularly light or heat.
In physics, it's measured as the fraction of incident radiation that a surface absorbs rather than reflects or transmits: Materials with high absorptivity heat up quickly in sunlight.
The term appears mainly in technical contexts—thermal engineering, spectroscopy, and climate science.
Thermal radiation ratio
- reflectivityLight-bouncing capacity
- transmissivityFlow capacity through medium
- transmittanceFraction not absorbed
- reflectanceLight return ratio
albedo · spectrophotometry · spectroscopy · coefficient · blackbody · wavelength · infrared · spectral
Thermal transfer prevention
- emissivityThermal radiation ratio
- thermodynamicsScience of heat-energy relationships
- conductivityAbility to carry current
- irradianceIncident power per area
blackbody · infrared · coating · temperature
Void space density
- permeabilityAbility to transmit fluids
- membraneThin tissue sheet
- polymerLarge repeated-unit molecule
- compositeMade of distinct parts
foam · ceramic · coating · fabric · microfiber · desiccant · hygroscopy · wicking
Measuring light wavelength absorption
- calibrationAdjusting for measurement accuracy
- coefficientNumber multiplying a variable
- transmittanceFraction not absorbed
- reflectanceLight return ratio
irradiance · concentration · wavelength · detector · standard
emissivity
Thermal radiation ratio
- reflectivityLight-bouncing capacity
- transmissivityFlow capacity through medium
- transmittanceFraction not absorbed
reflectance · albedo · spectrophotometry · spectroscopy · coefficient · blackbody · wavelength · infrared · spectral · radiation
insulation
Thermal transfer prevention
- emissivityThermal radiation ratio
- thermodynamicsScience of heat-energy relationships
- conductivityAbility to carry current
irradiance · blackbody · infrared · coating · temperature
porosity
Void space density
- permeabilityAbility to transmit fluids
- membraneThin tissue sheet
- polymerLarge repeated-unit molecule
composite · foam · ceramic · coating · fabric · microfiber · desiccant · hygroscopy · wicking · sponge
spectrophotometry
Measuring light wavelength absorption
- calibrationAdjusting for measurement accuracy
- coefficientNumber multiplying a variable
- transmittanceFraction not absorbed
reflectance · irradiance · concentration · wavelength · detector · standard
absorptivityreflectivity
Light-bouncing capacity
reflectance · transmissivity · transmittance · transparency · albedo
- molar absorptivityAbsorption strength per mole
absorb, absorbed, absorption, absorbent, absorptive, absorbency, absorptions, absorber, unabsorbed